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通过叶部施药法,比较了6种杀菌剂对甘草褐斑病的防治效果。试验结果表明,第2次施药后14 d,10%苯醚甲环唑ME 1 500倍液和20%丙环唑ME 2 000倍液对甘草褐斑病的防效分别为90.73%和85.33%;5%烯唑醇ME1 000倍液和25%腈菌唑EC 3 000倍液的防效分别为80.56%和78.71%,以上4处理的防效均显著优于对照药剂25%三唑酮WP 500倍液处理防效72.10%,40%多.福.溴菌清WP 750倍液与对照药剂25%三唑酮WP 500倍液的处理效果相当。在甘草褐斑病发生初期,均匀喷雾,间隔7 d,共喷药2次,可达到理想的防治效果。
Through the leaf application method, compared six kinds of fungicides on the prevention and treatment of licorice leaf spot effect. The results showed that the control effects of 10% difenoconazole ME 1500 and 20% propiconazole ME 2000 on the brown spot of Glycyrrhiza were 14 days and 14 days after the second application was 90.73% and 85.33 %; Control effect of 5% diniconazole ME1000 and 25% myclobutanil EC 3000 times were 80.56% and 78.71% respectively. The control effects of the above four treatments were significantly better than that of the control agent 25% triadimefon WP 500 times the liquid treatment control effect of 72.10%, 40%. Fu. Bromelain WP 750 times and 25% triadimefon WP 500 times the same treatment effect. In the early licorice leaf spot occurred, even spray, an interval of 7 d, a total of spraying 2 times, can achieve the desired effect of prevention and treatment.